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  1. Low-drain Long-life audio clicker

    Low-drain Long-life audio clicker

    Reading a post for Blind Cat's "sounder / navigation" aid, prompted me to try this relatively low-cost idea. About the circuit: Based originally on a low-drain LED blinker, the modified design replaces the hi-bright red LED with a high-impedance audio sounder. The idea is that roughly every...
  2. FuZZ1L0G1C

    Help with power supply

    If you have a DMM, and your camera battery or battery-cell housing is suitable, you can place a piece of stiff cardboard as an insulating barrier in the supply line (eg between batteries or one battery terminal and contact). Then take 2 lengths of insulated wire (I use solid hookup wire), either...
  3. FuZZ1L0G1C

    Have blind cat - need someone to build plug in device

    No, but our lounge-to-kitchen doorway has skid-marks from his scooting into kitchen when he hears the whir of the motor. ;)
  4. FuZZ1L0G1C

    ltspice

    You can try manually entering required paths for LTSpice to remember. Otherwise, the drive / folder you are attempting to write to orread from may need administrator privileges. By default, the two EDA / ECAD suites I use save to and access the documents/{app} folder. Try to change path as shown...
  5. FuZZ1L0G1C

    Reducing music in videos

    (A): Record the programme to your PVR / VCR. (B): Download the original music used as backing. (C): Using a video editor or audio mixer, align then mix the original soundtrack with inverted audio. Potential Problem: Finding exact music score used, and matching fadeins / fadeouts / studio edits.
  6. FuZZ1L0G1C

    Electronic Relay

    Although maybe not applicable to your mechanic, I have personally had wiring "fixes" by a local petrol mechanic-cum-wannabe "auto-electrician". Besides crossed wiring via headlamp and radiator fan, the joins were shoddy, with twisted wire ends taped over with tightly-stretched PVC insulation...
  7. FuZZ1L0G1C

    PCB Laser Etching

    Thanks for the share @vagalus. Definitely going to investigate this option further...
  8. FuZZ1L0G1C

    Need some help

    You may already know this, but here goes nothing anyway... Many devices these days contain some CMOS (static-sensitive) components. If you go the port-renewal route, earth (ground) soldering iron (or use a suitable station / LPG gas-powered iron, use wrist-grounding strap.
  9. FuZZ1L0G1C

    Capacitive reactance affecting voltage divider output

  10. FuZZ1L0G1C

    Got any ideas for using an old fridge?

    Or you could scrap it and get a few hundred bucks for copper tubing, compressor and mountings, and casing / shelves if metal. Otherwise the thin copper tubing makes an excellent radiator / heatsink, or coiled around the inner wall of a plastic / glass container, a 'surround' anode of a...
  11. FuZZ1L0G1C

    Have blind cat - need someone to build plug in device

    Record the sound of a can-opener.... Works every time for our cat!!
  12. FuZZ1L0G1C

    Comedy Thread

  13. FuZZ1L0G1C

    Frankenstein's Components.

    More of an unusual use for a product than a 'Frakenstein' component: Recently been upgrading my home PCB manufacturing setup, I shopped around for a better heating alternative to my Salton Hot-Tray for keeping Ferric Chloride at working temperature. A pet-products store near us sells...
  14. FuZZ1L0G1C

    Soldering audio cables together

    Personally, I like the flash-burning then scrape-cleaning method. Once, when I accidentally chopped my (fairly costly) headphone cable with a chair-leg, I used this method which you may also try: Snap off a length of perforated Vero-board about 50 mm (20 holes) long and 4 tracks wide. Get...
  15. FuZZ1L0G1C

    Too many printers - not enough ports?

    Update- after PC was powered down then re-booted, it now works USB-USB. :D I suspect BIOS had to recognize the new config. Problem solved, Thanks all.
  16. FuZZ1L0G1C

    Some info I read re UV exposure resist undercutting, with questions..

    Thank you re valuable advice - off to buy transparency sheets tomorrow from dealers. Tried a test-print via black laser on clear lamination sleeve - amazing clarity / sharp edges, but no good for true transparency, as it warps due to (middle) glue setting in a curved (paper-path)...
  17. FuZZ1L0G1C

    Some info I read re UV exposure resist undercutting, with questions..

    Hi. I've been doing a lot of web research lately, regarding the best method of creating clear, sharp PCB traces at fine resolution. Currently, I have no sophisticated UV equipment or materials, which is why I'm researching what to get. My current modus operandi is the old-fashioned and clumsy...
  18. FuZZ1L0G1C

    Too many printers - not enough ports?

    Scratching through my boxes of cables, old cards and modems, I found this small, active 4-port hub. I'll just have to buy another USB-to-mini cable as it appears the mini-usb on hub is the computer-connected port, while other 4 USB 2.0's are the connected devices. I tried using a USB 2.0 port to...
  19. FuZZ1L0G1C

    Talking to my phone

    Hi Matilda comma do you want go go for a drink after work question I'll see hyphen it depends period Oh comma I'm sorry hyphen maybe next week question
  20. FuZZ1L0G1C

    Too many printers - not enough ports?

    Thanks. I'll check out the PCIe / hubs at our computer stores on Monday. Now I'll need to build/buy a stand for my overcrowded work-space. :p
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